The mutations may be a
substitution, deletion, inversion, or addition.
The mutations in insulin may alter its active sites responsible
for receptor binding, or the time taken for the insulin
to be degraded (half-life). Mutation on insulin may cause diseases such as hyperproinsulinemia
or hyperinsulinemia.
4 is B. It wasn't in the genes to get short wings.
5 is C. It should be natural selection but adaptation is another way to say ns.
Answer:
Invertebrates.
Explanation:
Invertebrate refers to animals with no backbone.
Answer:
Rocks.
Explanation:
Scientists study rocks from the Precambrian period because isn't really a significant fossil record from the Precambrian.
The best option is C. desertification.
When land has been over farmed or overgrazed , desertification occurs.
Desertification is said to be a process of degradation of land whereby land that was previously biologically productive is changed into a barren, unproductive land.
Desertification can be brought about by poor use and destruction of natural resources such forest and natural vegetation. Such include:
1. Excessive tree felling or cutting
2. Unsustainable farming practices which lead to loss of soil fertility.
3. Removal of vegetation cover.
4. overgrazing.
5. Uncontrolled fuel wood gathering or collection.